<template>
<div>
  <select v-model="index">
    <option :value="i" v-for="(sheng,i) in shengji">{{sheng}}</option>
  </select>
  <select>
    <option v-for="city in cityList[index]">{{city}}</option>
  </select>
</div>
</template>

<script>
export default {
  name: "MoreCity",
  data(){
    return{
      shengji:["广东","河南","陕西"],
      cityList:[["343","123","532"],["111","22","3"],["44","55","66"]],
      index:""
    }
  }
}
</script>

<style scoped>

</style>
